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| REVIEW ARTICLE |
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| Year : 2010 | Volume
: 4
| Issue : 7 | Page : 58-61 |
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Euphorbia hirta: Its chemistry, traditional and medicinal uses, and pharmacological activities
Sunil Kumar, Rashmi Malhotra, Dinesh Kumar
Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra-136 119, Haryana, India
| Date of Submission | 10-Mar-2010 |
| Date of Decision | 16-Apr-2010 |
| Date of Web Publication | 10-Jul-2010 |
Correspondence Address:
Sunil Kumar
Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra-136 119, Haryana
India
  | 3 |
DOI: 10.4103/0973-7847.65327
The oldest remedies known to mankind are herbal medicines. India is known worldwide for its Ayurvedic treatment. Euphorbia hirta is often used traditionally for female disorders, respiratory ailments (cough, coryza, bronchitis, and asthma), worm infestations in children, dysentery, jaundice, pimples, gonorrhea, digestive problems, and tumors. It is reported to contain alkanes, triterpenes, phytosterols, tannins, polyphenols, and flavanoids. This review describes the medicinal properties, chemical constituents, and other important aspects of Euphorbia hirta. Keywords: Antioxidant, antimalarial, antibacterial, euphorbia hirta
How to cite this article:
Kumar S, Malhotra R, Kumar D. Euphorbia hirta: Its chemistry, traditional and medicinal uses, and pharmacological activities. Phcog Rev 2010;4:58-61 |
How to cite this URL:
Kumar S, Malhotra R, Kumar D. Euphorbia hirta: Its chemistry, traditional and medicinal uses, and pharmacological activities. Phcog Rev [serial online] 2010 [cited 2013 Jun 18];4:58-61. Available from: http://www.phcogrev.com/text.asp?2010/4/7/58/65327 |
| Introduction | |  |
In India use of the different parts of several medicinal plants to cure specific ailments has been in vogue from ancient times. The indigenous system of medicine, namely, Ayurvedic, Siddha, and Unani, has been in existence for several centuries. Some drugs from Ayurveda approaches modern diseases, have already reached the market place. [1] In modern medicines, plants occupy a very important place as the raw material for some important drugs. Synthetic drugs are effective in controlling different diseases but these synthetic drugs are out of reach of millions of people. It is estimated that around 70,000 plant species have been used for medicinal purposes. The herbs provide the starting material for the synthesis of conventional drugs. Medicinal plants have curative actions due to the presence of complex chemical constituents. India recognizes more than 2500 plant species having medicinal value, Sri Lanka around 1400, and Nepal around 700. [2] This review intends to provide an overview of the chemical constituents and pharmacological actions of Euphorbia hirta.
| General Information | | |
The largest genus of family Euphorbiaceae is Euphorbia with about 1600 species. It is characterized by the presence of white milky latex which is more or less toxic. Latices of E. ingens, E. mey, E. tirucalli, and E. triangularis are possible sources of rubber. [3] This group of plants has been a subject of intense phytochemical examination and isolated compounds which include:- flavanoids, triterpenoids, alkanes, amino acids, and alkaloids. [1] E. ipecacuanha is known as wild ipecac; E. antiquorum is known as Tridhara; E. lathyrus is known as caper spurge; and E. thymifolia is known as Laghududhika. [2]
There are many other species of Euphorbia which are used in traditional medicines. All species of Euphorbia exudes a milky juice when broken, which is more or less poisonous and used as an ingredient in arrow poisons. E. hirta possesses antibacterial, anthelmintic, antiasthmatic, sedative, antispasmodic, antifertility, antifungal, and antimalarial properties. [1]
Distribution
E. hirta is distributed throughout the hotter parts of India and Australia, often found in waste places along the roadsides. [6]
Plant Description
E. hirta Linn. Syn; E. pilulifera Linn. Chamaesyce pilulifera Linn. [5]
Family: Euphorbiaceae
Vernacular Names
Awuna Akinkodze
Bengal Barokhervi
English Pill---bearing spurge, asthma herb, snakeweed
Gujarat Dudeli
Hindi Dudhi
Indonesia Daun biji kacang, patikan kebo
Malayalam Nelapalai
Malaysia Ambin janyan, kelusan, keremak susu
Marathi Dudnali, govardhan
Orissa Jhotikhuntian
Sanskrit Amampatchairaisi, barokheruie, dugadhika
Tamil Amumpatchaiyarissi
Telagu Reddinanabrolu, bidarie, nanabala, nanabiyan
Visayan Bovi, buyayava [1],[2],[3],[4]
| Morphology | | |
E. hirta belongs to the plant family Euphorbiaceae and genus Euphorbia. It is a slender- stemmed, annual hairy plant with many branches from the base to top, spreading upto 40 cm in height, reddish or purplish in color. Leaves are opposite, elliptic - oblong to oblong- lanceolate, acute or subacute, dark green above, pale beneath, 1- 2.5 cm long, blotched with purple in the middle, and toothed at the edge. The fruits are yellow, three- celled, hairy, keeled capsules, 1-2 mm in diameter, containing three brown, four-sided, angular, wrinkled seeds. [1],[2],[3],[4]
| Ethnopharmacology | | |
E. hirta is used in the treatment of gastrointestinal disorders (diarrhea, dysentery, intestinal parasitosis, etc.), bronchial and respiratory diseases (asthma, bronchitis, hay fever, etc.), and in conjunctivitis. Hypotensive and tonic properties are also reported in E. hirta. The aqueous extract exhibits anxiolytic, analgesic, antipyretic, and anti-inflammatory activities. The stem sap is used in the treatment of eyelid styes and a leaf poultice is used on swelling and boils. [3]
Extracts of E. hirta have been found to show anticancer activity. The aqueous extract of the herb strongly reduced the release of prostaglandins I 2, E 2, and, D 2 [3] The aqueous extract also inhibits aflatoxin contamination in rice, wheat, maize, and mustard crops. [7] Methanolic extract of leaves have antifungal and antibacterial activities. The leaves pounded with turmeric and coconut oil are warmed and rubbed on itchy soles. The latex of E. hirta is applied on lower eyelids, like surma to cure eye sores. The root exudate exhibits nematicidal activity against juveniles of meloidogyne incognita. [3]
Decoction of dry herbs is used for skin diseases. Decoction of fresh herbs is used as gargle for the treatment of thrush. Root decoction is also beneficial for nursing mothers deficient in milk. Roots are also used for snake bites. [1] The polyphenolic extract of E. hirta has antiamoebic [8] and antispasmodic activity. [9] Quercitrin, a flavanoid glycoside, isolated from the herb showed an antidiarrheal activity. [10],[11] It is reported to have a relaxation effect on respiration. [12] The alcoholic extract of whole plant shows hypoglycemic activity in rats. [6] It has a sedative effect on the genitor-urinary tract. [4]
| Chemical Constituents | | |
E. hirta has been studied by various workers and a number of active constituents have been isolated. Afzelin (I), quercitrin (II), and myricitrin (III) have been isolated from the methanolic extract of E. hirta. [13] The chemical investigation of E. hirta has led to the isolation of rutin (IV), quercitin (V), euphorbin-A (VI), euphorbin-B (VII), euphorbin-C (VIII), euphorbin-D (IX), 2, 4, 6-tri-O-galloyl-β-d-glucose, 1, 3, 4, 6-tetra-O-galloyl-β-d-glucose, kaempferol, gallic acid, and protocatechuic acid. [14],[15] E. hirta also contains β-amyrin, 24-methylenecycloartenol, β-sitosterol, heptacosane, nnonacosane, [1] shikmic acid, tinyatoxin, choline, camphol, and quercitol derivatives containing rhamnose and chtolphenolic acid [Figure 1]. [6]
| Pharmacological Activities | | |
Antibacterial activity
The ethanolic extract of E. hirta inhibited the growth of the Escherichia More Details coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtili[16] and aqueous and chloroform leaf extracts of E. hirta possess an antibacterial activity against Klebsiella pneumonia. The extract is noncytotoxic and antibacterial. [17]
Antimalarial activity
The bioassay-guided fractionation of the methanolic extract of aerial parts of E. hirta, monitored against P. falciparum parasites, yielded a main active chromatographic fraction showing 90% growth inhibition of P. falciparum at a concentration of 5 ΅g/ml. [13]
Anti-inflammatory activity
The n-hexane extract of aerial parts of E. hirta showed anti-inflammatory effects in the model of phorbol acetate-induced ear inflammation in mice. It exhibited a dose-dependent effect. [18],[19]
Galactogenic activity
The powdered E. hirta showed a galactogenic activity in guinea pigs before puberty by increasing the development of the mammary glands and induction of secretion. [20]
Antiasthmatic activity
E. hirta is reported to have an antiasthmatic activity due to the relaxation effect on the bronchial tubes and a depressant action on respiration. [12]
Effect on urine output and electrolytes
Ethanolic and aqueous leaf extracts of E. hirta significantly induced diuresis in rats. The diuretic effect of the ethanol extract was significant at 6 h (for 100 mg/kg) and at 24 h (for 50 mg/kg). The water extract induced a significant increase in urine Na + , K + and HCO 3- loss. The ethanol extract (100 mg/ml) caused a significant decrease in the K + loss whereas the water extract increased its excretion. The HCO 3- urine output following the injection of both extracts was tremendously enhanced. [21]
Antidiarrheal activity
The antidiarrheal effect of the herb decoction was studied in mice. It demonstrated an activity in models of diarrhea induced by castor oil, arachidonic acid, and prostaglandin E 2 . [10] Quercitrin, a flavanoid glycoside isolated from E. hirta, showed an antidiarrheal activity, at a dose of 50 mg/kg, against castor oil and prostaglandin E2 -induced diarrhea in mice. [11]
Antioxidant activity
The aqueous extract of E. hirta L. showed an antioxidant effect and a free radical scavenging activity in various in vitro models like total antioxidant and total ferric reducing power determination, assay for free radical-scavenging activity using ABTS, DPPH, and hydroxyl radical scavenging assays. It showed maximum antioxidants and free radical scavenging activities, at 0.25 mg/ml. The free radical scavenging effect on DPPH and hydroxyl was found as 68.80 ± 5.21 and 73.36 ± 5.21%, respectively. [22]
Antifertility activity
E. hirta at a dose of 50 mg/kg reduced the sperm motility and density of cauda epididymal and testis sperm suspension significantly, leading to 100% infertility. [23]
Antiamoebic activity
The polyphenolic extract of E. hirta inhibited the growth of Entamoeba histolytica with a minimum active concentration of less than 10 ΅g/ml. [8]
Antifungal activity
An ethanolic extract of E. hirta showed an antifungal activity against plant pathogens Colletotrichum capsici, Fusarium pallidoroseum, Botryodiplodia theobromae, Phomopsis caricae-papayae, and Aspergillus niger using the paper disc diffusion technique. [24]
| Summary | | |
In the present review, we have made an attempt to provide the mophological, phytochemical, ethnopharmacological, and pharmacological information on E. hirta, a herb used traditionally for medicinal purposes. The literature survey revealed that E. hirta contains afzelin, quercitrin, myricitrin, rutin, gallic acid, quercitin, euphorbin-A and ephorbin-B, euphorbin-C, euphorbin-D, β-amyrin, 24-methylenecycloartenol, β-sitosterol, heptacosane, n-nonacosane, [14],[15] shikmic acid, tinyatoxin, choline, camphol, and quercitol derivatives containing rhamnose, and chtolphenolic acid. [6]
This herb shows antibacterial, anti-inflammatory, antimalarial, galactogenic, antiasthmatic, antidiarrheal, anticancer, antioxidant, antiferlity, antiamoebic, and antifungal activities. Further research is going on to find out more activities in constituents of E. hirta.
There are many other traditional uses of E. hirta in Ayurveda which serves as the basis for further studies. This review will definitely help the researchers to know its different properties.
| References | | |
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[Figure 1]
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